added text input component

components/text_input.component.js

+import React from 'react';
+import { StyleSheet, TextInput } from 'react-native';
+import themeColors from '../assets/colors';
+
+export const AppTextInput = (props) => {
+  return(
+    <TextInput style={styles.input}/>
+  )
+}
+
+const styles = StyleSheet.create({
+  input:{
+    alignItems: "center",
+    padding: 10,
+    fontSize: 16,
+    borderBottomColor: themeColors.SECONDARY_COLOR,
+    borderBottomWidth: 1,
+  },
+  Text: {
+    fontFamily: 'Poppins-Black',
+    fontSize: 22,
+    color: themeColors.WHITE
+  }
+});
+